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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>NRF7002 Sleep mode power supply</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/122236/nrf7002-sleep-mode-power-supply</link><description>Good afternoon! As the NRF7002 takes about 400ms to start up from shutdown, we would like to use the very low power deep sleep function for quick startup. Unfortunately, due to the archtitecture of the design, the main power rail will be shut off when</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Fri, 13 Jun 2025 11:57:42 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/122236/nrf7002-sleep-mode-power-supply" /><item><title>RE: NRF7002 Sleep mode power supply</title><link>https://devzone.nordicsemi.com/thread/539194?ContentTypeID=1</link><pubDate>Fri, 13 Jun 2025 11:57:42 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:4b6ddd0e-58ff-4f32-96b8-b40fb6c12372</guid><dc:creator>H&amp;#229;kon Alseth</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;The power sequence for both powering up and down is provided here:&lt;/p&gt;
&lt;p&gt;&lt;a href="https://docs.nordicsemi.com/bundle/ps_nrf7002/page/chapters/hw_layout/doc/hw_layout.html#ariaid-title13"&gt;https://docs.nordicsemi.com/bundle/ps_nrf7002/page/chapters/hw_layout/doc/hw_layout.html#ariaid-title13&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;It is effectively VBAT and IOVDD that needs to be supplied. If your rails goes down, you should do a full power sequence afterwards.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&amp;nbsp;&lt;/p&gt;
[quote user=""]Is there a specific pin out of all the power pins on the NRF7002 that is used for deep sleep? [/quote]
&lt;p&gt;No, there is not. Such a state, ie. the &amp;quot;sleep&amp;quot; state, as defined here:&lt;/p&gt;
&lt;p&gt;&lt;a href="https://docs.nordicsemi.com/bundle/ps_nrf7002/page/chapters/functional/doc/power_states.html"&gt;https://docs.nordicsemi.com/bundle/ps_nrf7002/page/chapters/functional/doc/power_states.html&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Is a dynamic state, and cannot be read or indicated on a pin directly. This has to be detected in firmware, by disconnecting the wifi link.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Kind regards,&lt;/p&gt;
&lt;p&gt;Håkon&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>